Test or Forecast

Emissions Analytics has now tested over 800 vehicles, covering a wide range of makes, models and engine types. This enables us to forecast fuel economy for cars we haven’t yet tested. So, the table contains MPG numbers for almost every car on sale in the UK in the last five years, clearly labelled whether they are are based on an actual Test or Forecast (T/F).

The EQUA Fuel Economy Index

What is the issue?

Motorists regularly complain that they cannot achieve the miles per gallon (Mpg) figures officially published. Having tested over a thousand cars in real-world conditions, Emissions Analytics has found an overall shortfall of 25%, with some vehicles as much as 40% below manufacturers’ claims.

The problem of worse real-world MPG has been known by authorities for many years, yet the new World Harmonised Light Vehicle Test Procedure, designed to improve official test results, will still be conducted in the laboratory and therefore subject to many of the same issues.

How the EQUA Mpg Index helps

Emissions Analytics believes no Mpg labelling can be robust without on-road verification. With more test results than any other independent organisation, Emissions Analytics has pioneered the use of PEMS to compare real-world vehicle performance.

Emissions Analytics’ independence comes from how it sources vehicles, conducts tests and is funded, which are not within the direct control of any interested party, including manufacturers, governments and regulators.